def _buildCQLStr(self):
'''Builds a cql_filter string as set by the user appending an 'id>...' partitioning string if needed. NB. Manual partitioning is accomplished using the parameters, 'maxFeatures' to set feature quantity, a page-by-page recorded 'id' value and a 'sortBy=id' argument'''
cql = ()
maxfeat = ""
# #if implementing pagination in cql
# if self.pstart and self.psize:
# cql += (self.pkey+">"+str(self.pstart),)
# #sortBy used so last feature will have the new maximum key, saves a comparison
# maxfeat = "&sortBy="+self.pkey+"&maxFeatures="+str(self.psize)
if self.cql:
cql += (LU.checkCQL(self.cql),)
return maxfeat+"&cql_filter="+';'.join(cql) if len(cql)>0 else ""
